auth: query all accounts stored via gRPC

[RiccardoM]

Description

This PR adds the ability to query all the accounts stored on the chain, which might be particularly useful to third party projects like Juno when parsing the chain data from scratch starting at a given height.

closes: #XXXX

---

Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer
• Review Codecov Report in the comment section below once CI passes

[codecov]

Codecov Report

Merging #8522 (dd80814) into master (0b3af0e) will increase coverage by 0.00%.
The diff coverage is 61.76%.

@@           Coverage Diff           @@
##           master    #8522   +/-   ##
=======================================
  Coverage   61.47%   61.47%           
=======================================
  Files         659      659           
  Lines       37876    37910   +34     
=======================================
+ Hits        23283    23304   +21     
- Misses      12159    12166    +7     
- Partials     2434     2440    +6     

Impacted Files	Coverage Δ
x/auth/client/cli/query.go	38.70% <61.11%> (+3.80%)	⬆️
x/auth/keeper/grpc_query.go	61.11% <62.50%> (+1.11%)	⬆️

[amaury1093]

lgtm, thanks. proto-docs.md should also be updated, it should be updated automatically when running make proto-all

[RiccardoM]

lgtm, thanks. proto-docs.md should also be updated, it should be updated automatically when running make proto-all

I can't run this because I get the following error:

make proto-gen
Generating Protobuf files
/usr/bin/docker run --rm -v /home/robert/go/src/github.com/cosmos/cosmos-sdk:/workspace --workdir /workspace tendermintdev/sdk-proto-gen sh ./scripts/protocgen.sh
W0207 21:47:23.959599     362 services.go:38] No HttpRule found for method: Msg.GrantAuthorization
W0207 21:47:23.959691     362 services.go:38] No HttpRule found for method: Msg.ExecAuthorized
...
--doc_out: could not find protoc plugin for name doc
make: *** [Makefile:372: proto-gen] Error 1

P.S. It looks like I'm not the only one: https://discord.com/channels/669268347736686612/680435043570941973/808093567779602442

[amaury1093]

I can't run this because I get the following error:

Could you try deleting your Docker containers and running the command again from a fresh start?

[RiccardoM]

I can't run this because I get the following error:

Could you try deleting your Docker containers and running the command again from a fresh start?

Ok I just pulled tendermintdev/sdk-proto-gen and tendermintdev/docker-build-proto and it worked

[amaury1093]

utACK

[fedekunze]

ACK minor comment. Don't you need to also add the auth client cmd?

[RiccardoM]

ACK minor comment. Don't you need to also add the auth client cmd?

Do you think we should add both CLI and REST client commands, or only the CLI one?

Since there's the willing to eventually deprecate the REST APIs, I'd implement only the CLI query.

[amaury1093]

Yes, CLI is enough. The non-legacy REST endpoint "/cosmos/auth/v1beta1/accounts" will be handled by grpc-gateway automatically.

[RiccardoM]

Yes, CLI is enough. The non-legacy REST endpoint "/cosmos/auth/v1beta1/accounts" will be handled by grpc-gateway automatically.

Perfect, should have added it